It is a special type of pangram or pangrammatic window.

Today’s pangram isn’t as radical, but it’s still a variation I don’t recall seeing before.

A pangram is a sentence that uses every letter of the alphabet at least once.

Pack My Box challenges the user to create a pangram of less than 32 letters.

The best known English pangram is "The quick brown fox jumps over the lazy dog."

The え (e) above would have been pronounced ye, making the pangram incomplete.

He plays a vital role in the attempt to find a pangram that fits the qualifications set by the council (also known as Enterprise 32).

The text of the pangram written in kanji:

In the age of computers, this pangram is commonly used to display font samples and for testing computer keyboards.

See pangram for more examples.

A pangrammatic lipogram or lipogrammatic pangram uses every letter of the alphabet except one.

The following is a pangram:

In the sequel, Sallows built an electronic "pangram machine", that performed a systematic search among millions of candidate solutions.

This prompted Sallows to construct an electronic Pangram Machine.

In a sense, the pangram is the opposite of the lipogram, in which the aim is to omit one or more letters.

A self-enumerating pangram is a pangrammatic autogram, or a sentence that inventories its own letters, each of which occurs at least once.

For example, "The quick brown fox jumped over the lazy dog" omits the letter S, which the usual pangram includes by using the word jumps.

A perfect heterogram is, however, the same as a perfect pangram, since both consist of all letters of the alphabet with each represented exactly once.

The Javanese alphabet itself forms a poem, and a perfect pangram, of which the line-by-line translation is as follows.:

The first ever self-enumerating pangram appeared in a Dutch newspaper and was composed by Rudy Kousbroek.

It is famous because it is a perfect pangram and in the same time an isogram, containing each character of the Japanese syllabary exactly once.

Ametsuchi No Uta (an earlier pangram)

A heterogram may be distinguished from a pangram (a holoalphabetic sentence), which uses all of the letters of the alphabet (possibly more than once).

A sentence which uses every letter of the alphabet (a pangram), "The quick brown fox jumps over the lazy dog" can be used to check typewriters quickly.

By the way, not only is today’s crossword a pangram, but it’s also just a K and a Q short of being a double pangram.